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Tips for Data Centers

Better control of your facility’s energy use is often as easy as flipping a switch. Get started with these tips.

Data centers use 2 percent of the electricity in the United States. Make your data center more efficient with these improvements:

  • Save energy with server power-management software, which enables servers to go into standby mode when not in use.
  • Go virtual. Improve your energy efficiency and use less equipment by utilizing a host server to run multiple operating systems and applications.
  • Upgrade your servers to ENERGY STAR® qualified models. In recent tests conducted by the EPA, Hewlett-Packard, and Microsoft, new ENERGY STAR servers used 54 percent less power than some older models.
  • Make use of more efficient uninterruptible power supply (UPS) units.
  • Adjust your data center’s layout to alternate hot aisles and cold aisles, which improves airflow.
  • Follow ASHRAE Technical Committee 9.9 temperature and humidity guidelines. For Class 1 and Class 2 data centers, this means a temperature between 68 and 77° F and 40 to 55 percent relative humidity, with a maximum temperature change per hour of nine degrees.
  • Use an outside air or waterside economizer, air-to-air heat exchanger, or dry cooler to cool your data center.
  • Ensure supply air is directed to the appropriate equipment and is not mixing with hot air.


Want to find more ways to improve the efficiency of your data center? Our Telecommunications Network Program (TNP) helps telecommunications companies improve network and facility operations through the identification and implementation of energy-efficient equipment upgrades. Learn more or contact our implementation partner Franklin Energy at or 855-678-7395.

The program provides eligible Telecommunications providers with support from dedicated program Energy Advisors through a no-cost on-site facility assessment, recommendations, and incentives to help pay for energy-efficient equipment upgrades. Qualifying customers must be providers of wired or wireless telephone, internet, cable, broadcasting, or telecommunications data services within the National Grid service areas of Massachusetts.